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How to change front windshield wipers on MERCEDES-BENZ GL (X166) – replacement guide
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Recommended replacement interval for the part category Wiper blade : 12 month
Important!
This replacement procedure can be used for:
MERCEDES-BENZ GL (X166) GL 400 4-matic (166.856), MERCEDES-BENZ GL (X166) GL 350 CDI / BlueTEC 4-matic (166.824), MERCEDES-BENZ GL (X166) GL 450 4-matic (166.872), MERCEDES-BENZ GL (X166) GL 350 CDI / BlueTec 4-matic (166.823, 166.824), MERCEDES-BENZ GL (X166) GL 500 4-matic (166.873, 166.874), MERCEDES-BENZ GL (X166) GL 63 AMG 4-matic (166.874), MERCEDES-BENZ GL (X166) GL 450 4-matic, MERCEDES-BENZ GL (X166) GL 500 4-matic (166.871), MERCEDES-BENZ GL (X166) GL 63 AMG 4-matic (166.874), MERCEDES-BENZ GL (X166) GL 500 4-matic (166.873), MERCEDES-BENZ GL (X166) GL 350 CDI / BlueTEC 4-matic (166.824) … View more
The steps may slightly vary depending on the car design.
MERCEDES-BENZ GL (X166) GL 400 4-matic (166.856), MERCEDES-BENZ GL (X166) GL 350 CDI / BlueTEC 4-matic (166.824), MERCEDES-BENZ GL (X166) GL 450 4-matic (166.872), MERCEDES-BENZ GL (X166) GL 350 CDI / BlueTec 4-matic (166.823, 166.824), MERCEDES-BENZ GL (X166) GL 500 4-matic (166.873, 166.874), MERCEDES-BENZ GL (X166) GL 63 AMG 4-matic (166.874), MERCEDES-BENZ GL (X166) GL 450 4-matic, MERCEDES-BENZ GL (X166) GL 500 4-matic (166.871), MERCEDES-BENZ GL (X166) GL 63 AMG 4-matic (166.874), MERCEDES-BENZ GL (X166) GL 500 4-matic (166.873), MERCEDES-BENZ GL (X166) GL 350 CDI / BlueTEC 4-matic (166.824) … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Wiper Blades for GL (X166) and other MERCEDES-BENZ models
Alternative products

Flat Screwdriver
Replacement: windshield wipers – MERCEDES-BENZ GL-CLASS (X166). AUTODOC experts recommend:
- Always replace front wiper blades together. It will ensure efficient and uniform cleaning of the windshield.
- Don't confuse the wiper blades of the driver and passenger side.
- The replacement procedure for both wiper blades is identical.
- Please note: all work on the car – MERCEDES-BENZ GL-CLASS (X166) – should be done with the engine switched off.
Carry out replacement in the following order:
- Step 1
Prepare the new windscreen wipers. - Step 2
Pull the wiper arm away from the glass surface until it stops. - Step 3
Press the clip. Use a flat screwdriver. - Step 4
Remove the blade from the wiper arm.Replacement: windshield wipers – MERCEDES-BENZ GL-CLASS (X166). Tip from AUTODOC:When replacing the wiper blade, take caution to prevent the spring-loaded wiper arm from hitting the glass.
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